* {
    -webkit-tap-highlight-color: transparent;
  }

body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    font-family: Arial, sans-serif;
    background-color: #1a1a1a;;
    color: #fff;
}

.container-card {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

h1 {
    text-align: center;
    font-size: 3rem;
    margin-bottom: 3rem;
    color: #fff;
}

h1 {
    background: linear-gradient(
    to right,
    #FFB6C1, /* Rose clair */
    #FF69B4, /* Rose vif */
    #FFA07A, /* Saumon */
    #FFD700, /* Or clair */
    #98FB98, /* Vert pâle */
    #20B2AA, /* Turquoise */
    #87CEEB, /* Bleu ciel */
    #6495ED, /* Bleu pastel */
    #DDA0DD, /* Prune clair */
    #EE82EE, /* Violet clair */
    #FFB6C1  /* Rose clair */
);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    animation: rainbow 40s linear infinite;
    background-size: 400% 100%;
}

@keyframes rainbow {
    0% {
        background-position: 0% 50%;
    }
    100% {
        background-position: 400% 50%;
    }
}

.games-container {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.game-card {
    background-color: #2a2a2a;
    border-radius: 10px;
    padding: 2rem;
    width: 300px;
    text-align: center;
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.game-card h2 {
    color: #fff;
    margin-bottom: 1rem;
}

.game-card p {
    color: #ccc;
    margin-bottom: 2rem;
}

.play-button {
    display: inline-block;
    padding: 0.8rem 2rem;
    background-color: #4CAF50;
    color: #fff;
    text-decoration: none;
    border-radius: 5px;
    transition: background-color 0.3s ease;
    align-self: center;
}

.play-button:hover {
    background-color: #4fce56;
}

@media (max-width: 768px) {
    .container-card {
        padding: 1rem;
    }
}

.container-btn-card {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
}

.rules-button {
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s;
}

.popup {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.4);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    backdrop-filter: blur(5px);
    animation: fadeIn 0.3s ease-out;
}

.popup-content {
    background: #1a1a1aea;
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    max-width: 400px;
    width: 90%;
    margin: 20px;
    transform: translateY(0);
    animation: slideUp 0.4s ease-out;
    border: 1px solid rgba(255, 255, 255, 0.2);
    color:white;
}

.close-button {
    display: block;
    margin: 20px auto;
    background: #4CAF50;
    color: white;
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: 25px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.close-button:hover {
    background: #4CAF50;
    transform: scale(1.05);
}

.back-btn {
    position: fixed;
    top: 20px;
    left: 20px;
    background: rgba(255, 255, 255, 0.15);
    color: white;
    text-decoration: none;
    padding: 0.8rem 1.5rem;
    border-radius: 25px;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 8px;
    border: 2px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(4px);
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 100;
}
.back-btn:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

@media (max-width: 768px) {
    .back-btn {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
        top: 10px;
        left: 10px;
    }
}